In Tarkir: Dragonstorm we have a cycle of lands that enter tapped unless you control an enemy basic land for the respective land, with an added ability tacked on
If Nadu leaves the battlefield and returns to the battlefield in the same turn, or if Nadu leaves and another Nadu appears, the triggered ability granted by the new one is different than the triggered ability granted by the old one
LAND AHOY If theres one thing thats great in Commander, its ramping your mana
Even better, you can then place a permanent from your hand onto the battlefield for free
Due to deathtouch, Colossal Dreadmaw is destroyed before it has a chance to fight back
White Mage's Staff, for instance, is effectively a 2/2 creature with upside (as you can always move the equipment around later)